The October 25 episode of “Real Men” will feature Korean celebrities in the marines instead of the usual infantry soldiers. Today’s episode is the first day at the marines for Im Won Hee, Jung Gyu Woon, Lee Ki Woo, Kim Young Chul, ZE:A‘s Dongjun, Heo Kyung Hwan, Sleepy, Sam Okyere, Julien Kang, Don Spike, Lee Yi Kyung, Dindin, and Lee Sung Bae, and they will be undergoing various physical tests and interviews.

In general, only one in five make it to the marines after the initial screening. Their strictness is reflected in their physical tests, as all measurements are digitized with sensors, so that they can be accurate in deciding who to admit into the marines.